SOLUTION: what is the LCM of 66 and 90
what is the LCM 96 and 212
what is the LCM of 25 and 70
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Question 517525: what is the LCM of 66 and 90
what is the LCM 96 and 212
what is the LCM of 25 and 70
Answer by oberobic(2304) (Show Source): You can put this solution on YOUR website!
1) LCM OF 66 & 90
.
Factor the number into prime factors...
66= 1 * 2 * 3 * 11
90= 1 * 2 * 3 * 3 * 5
.
Multiply each factor the most times it occurs
1: occurs once in each sequence
2: occurs once in each sequence
3: occurs twice in 90
5: occurs once in 90
7: does not occur
11: occurs once in 66
.
LCM = 1 * 2 * 3 * 3 * 5 * 11 = 990
.
.
2) LCM OF 96 AND 212
.
96= 8*12 = 1 * 2 * 2 * 2 * 2 * 2 * 3
212 = 4*53 = 1 * 2 * 2 * 53
.
LCM = 1 * 2^5 * 3 * 53 = 32*53 = 5088
.
.
3) LCM OF 25 AND 70
.
25= 1 * 5 * 5
70 = 1 * 2 * 5 * 7
.
LCM = 1 * 2 * 5 * 5 * 7 = 350
.
.
Done.
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